Texas Instruments

LM2576T-ADJ/NOPB  

DC Switching Voltage Regulators

The LM2576T-ADJ/NOPB is a versatile step-down (buck) switching regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide efficient and stable voltage regulation for a wide range of applications.

Description:

The LM2576T-ADJ/NOPB is a member of the LM2576 family of switching regulators, which are known for their high efficiency, low noise, and excellent thermal performance. The "T" in the model number indicates a thermally enhanced version of the standard LM2576, providing better heat dissipation and allowing for higher power dissipation.

Features:

1. Wide input voltage range: The LM2576T-ADJ/NOPB can accept input voltages from 4V to 40V, making it suitable for various power supply applications.
2. Adjustable output voltage: The output voltage can be adjusted using an external resistor network, allowing for customization to meet specific voltage requirements.
3. High efficiency: The LM2576T-ADJ/NOPB offers efficiency levels up to 90%, depending on the input and output voltages, which helps reduce power consumption and heat generation.
4. Low output ripple and noise: The switching frequency of the LM2576T-ADJ/NOPB is adjustable between 20kHz and 100kHz, which helps minimize output ripple and noise for clean voltage regulation.
5. Thermal and current limiting protection: The IC features built-in thermal shutdown and over-current protection to safeguard against overload and overheating conditions.
6. Small form factor: The LM2576T-ADJ/NOPB is available in a compact TO-220 package, making it suitable for space-constrained applications.

Applications:

1. Power supplies for consumer electronics: The LM2576T-ADJ/NOPB can be used to provide regulated power to a wide range of electronic devices, such as smartphones, tablets, and laptops.
2. Industrial control systems: The high efficiency and thermal performance of the LM2576T-ADJ/NOPB make it suitable for powering industrial control systems and sensors.
3. LED lighting: The adjustable output voltage and low noise characteristics of the LM2576T-ADJ/NOPB make it an ideal choice for driving LED lighting applications.
4. Robotics and automation: The LM2576T-ADJ/NOPB can be used to power various electronic components in robotic and automation systems, providing stable and efficient power supply.
5. Medical equipment: The LM2576T-ADJ/NOPB can be used in medical devices that require a stable and regulated power supply, such as portable diagnostic equipment and wearable medical devices.

In summary, the LM2576T-ADJ/NOPB is a versatile and efficient step-down switching regulator IC from Texas Instruments, suitable for a wide range of applications requiring stable and adjustable voltage regulation. Its high efficiency, low noise, and thermal performance make it an excellent choice for various power supply needs.

LM2576T-ADJ/NOPB Documents

Download datasheets and manufacturer documentation for LM2576T-ADJ/NOPB

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Product Change Notification (PDF)      

Models :

LM2576T-ADJ/NOPB Symbol & Footprint by SnapMagic      

SPICE Models :

Export TINA-TI Transient Spice Model from WEBENCH (Rev. A)       LM2576 PSpice Transient Model       LM2576 Unencrypted PSpice Transient Model